iOS电话状态监听

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一、iOS10之前

  1. 导入头文件
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#import <CoreTelephony/CTCallCenter.h> 
#import <CoreTelephony/CTCall.h>
  1. 代码
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@property (strong, nonatomic) CTCallCenter *callCenter;

self.callCenter = [[CTCallCenter alloc] init];
self.callCenter.callEventHandler = ^(CTCall * call) {
  if([call.callState isEqualToString:CTCallStateDisconnected]) {
    NSLog(@"Call has been disconnected"); // 电话被挂断
  } else if([call.callState isEqualToString:CTCallStateConnected] {
    NSLog(@"Call has been connected"); // 电话被接听
  } else if([call.callState isEqualToString:CTCallStateIncoming]) {
    NSLog(@"Call is incoming"); // 来电话了
  } else if([call.callState isEqualToString:CTCallStateDialing]) {
    NSLog(@"Call is Dialing"); // 拨号
  } else {
    NSLog(@"Nothing is done");
  }
};

二、iOS10之后

iOS10及之后使用Callkit中的CXCallObserver和CXCall

  1. 导入头文件
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#import <CallKit/CXCallObserver.h> 
#import <CallKit/CXCall.h>
  1. 代码
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@property (strong, nonatomic) CXCallObserver *callObserver;
// 电话监听
if (!self.callObserver) {
    self.callObserver = [[CXCallObserver alloc] init];
    [self.callObserver setDelegate:self queue:dispatch_get_main_queue()];
}
#pragma mark - 电话的监听

- (void)callObserver:(CXCallObserver *)callObserver callChanged:(CXCall *)call {
    NSLog(@"call observer uuid: %@", call.UUID);
    NSLog(@"outgoing(拨打) :%d  onHold(待接通) :%d   hasConnected(接通) :%d   hasEnded(挂断) :%d",call.outgoing,call.onHold,call.hasConnected,call.hasEnded);
    /* 挂断    outgoing(拨打) :0  onHold(待接通) :0   hasConnected(接通) :0   hasEnded(挂断) :1
    拨打    outgoing(拨打) :1  onHold(待接通) :0   hasConnected(接通) :0   hasEnded(挂断) :0  (拨打)
    outgoing(拨打) :1  onHold(待接通) :0   hasConnected(接通) :0   hasEnded(挂断) :1  (拨打 - 挂断)
    outgoing(拨打) :1  onHold(待接通) :0   hasConnected(接通) :1   hasEnded(挂断) :0  (拨打 - 接通)
    outgoing(拨打) :1  onHold(待接通) :0   hasConnected(接通) :1   hasEnded(挂断) :1  (拨打 - 接通 - 挂断)
    接通    outgoing(拨打) :0  onHold(待接通) :0   hasConnected(接通) :1   hasEnded(挂断) :0  (接通)
    outgoing(拨打) :0  onHold(待接通) :0   hasConnected(接通) :1   hasEnded(挂断) :1  (接通 - 挂断)*/
    if (call.hasConnected) {
        /// 接通了电话
    }
    
    if (call.hasEnded) {
        // 挂断
    }
}
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